Circuit protection device and system
a protection device and circuit technology, applied in the field of circuit protection devices and systems, can solve problems such as series arc faults, parallel arc faults, and arc flashes
Active Publication Date: 2012-10-02
GE INFRASTRUCTURE TECH INT LLC
View PDF20 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
A broken conductor or a poor electrical connection between a conductor and another electrical element may cause series arc faults.
Conductors with different potentials may cause parallel arc faults.
Due to such series or parallel arc faults, a rapid energy release may occur resulting in an arc flash.
However, such circuit breakers are generally controlled by electromechanical (EM) mechanisms to shift between open and closed states, and such EM mechanisms have relatively long response times. Further, although such circuit breakers cut off the power lines, residual energy generated during the arc event still needs to be released.
As a result, the circuit breakers are generally destroyed due to the release of the residual energy.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014]Embodiments of the present disclosure are described herein with reference to the accompanying drawings. In the subsequent description, well-known functions or constructions are not described in detail to avoid obscuring the disclosure in unnecessary detail.
[0015]FIG. 1 is a schematic diagram of an arrangement of a circuit protection device 10 and circuitry (not labeled) in accordance with one embodiment of the invention. For the arrangement illustrated in FIG. 1, the circuitry comprises an electrical power source 11 configured to generate and output electrical power, and a power line 12 configured to deliver the electrical power from the electrical power source 11. A load 13 receives the electrical power from the power source 11 via the power line 12.
[0016]For the illustrated arrangement, the circuit protection system 10 comprises a detection unit 14 and a circuit protection device or smart fuse 15 electrically connected to the detection unit 14. In embodiments of the inventio...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A circuit protection device for protection of circuitry is provided. The circuit protection device comprises a housing defining a chamber and a plurality of conductors. The conductors are configured to connect to the circuitry and extending into the chamber, and comprise at least a first conductor and a second conductor spatially separated from the first conductor. The circuit protection device further comprises an ignition component disposed in the chamber and configured to electrically connect the first and second conductors. A circuit protection system is also presented.
Description
BACKGROUND[0001]This invention relates generally to circuit protection devices and systems. More particularly, this invention relates to circuit protection devices and systems for mitigation of overcurrent, arc flash and / or short circuit faults.[0002]Electric power circuits and switchgears have conductors separated by insulation. A broken conductor or a poor electrical connection between a conductor and another electrical element may cause series arc faults. Conductors with different potentials may cause parallel arc faults. Due to such series or parallel arc faults, a rapid energy release may occur resulting in an arc flash.[0003]An arc flash generally produces high heat, intense light, and huge sound / shock waves similar to that of an explosion. For example, an arc flash induces temperatures as high as 20,000° C. so as to vaporize conductors and adjacent elements, and to release explosive energies to destroy surrounding circuits and cause damage.[0004]Presently, circuit breakers ar...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(United States)
IPC IPC(8): H02H9/06
CPCH01T2/02
Inventor WU, JUNTAOGARRITY, JOHN THOMASZHAN, CHUN CHERYL
Owner GE INFRASTRUCTURE TECH INT LLC